Data Layer: CONGRESSIONAL DISTRICT
You are invited to read the definitions of terms used in this data standard.
||The data layer consists of digital information input by the Census Bureau depicting the boundaries of the Congressional Districts. This may vary by Congress, as there could be redistricting changes every two years.|
||The 2009 TIGER/Line Shapefiles are available for download at http://www.census.gov/geo/www/tiger/tgrshp2009/tgrshp2009.html. The 2009 TIGER/Line metadata in Extensible Markup Language (XML) format is included with each compressed TIGER/Line Shapefile.|
|Historical Data||For information on past versions of this standard, contact the National Data Administrator, Branch of Data and Systems Services, Division of Information Resources and Technology Management|
Part 270, FW 6, Data Management and Standards, has been superceded by Part 274, FW 2, Establishing Service Data Standards.
The organizational structure of Nation- and state-based shapefiles, including current and previous Congressional Districts, is described at http://www.census.gov/geo/www/tiger/tgrshp2009/org.html.
The National Atlas of the United States provides printable maps, boundaries, and a map layer of the congressional district boundaries. Descriptive information includes the full name and party affiliation of the congressional representative elected from each district and the congressional district number. This map layer is the only congressional district information that can be viewed online with the National Atlas Map Maker; however, historical congressional district map layers for previous Congresses are also available for download from the National Atlas web site.
||As of the approval date, this data standard will be used whenever Congressional
District spatial data are required for an application. This data standard also needs
to be used in conjunction with the Congressional District Data Element Standard, which can
be viewed at this site.
Service staff are strongly encouraged to utilize this data layer in existing systems, data sets, databases, and information applications. Where existing systems and data-related items are not in compliance, they should be modified to achieve compatibility and implement this data standard.
|Approval Date||July 13, 1999|
|Validation Date||January 18, 2011|
|Data Steward||Chris Lett, National FWS GIS Coordinator, Branch of Data and Systems Services, Division of Information Resources and Technology Management.|